Laser Cutting vs Water Jet Cutting: What’s the Difference?
When it comes to cutting metal, two big options come up: laser cutting and water jet cutting. Both are precision CNC methods—but they’re not the same.
So which one should you use?
Here’s a side-by-side comparison based on what our in-house laser cutting system can do, and how it stacks up to water jet cutting.
1. How They Work
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Laser cutting uses a focused beam of light to melt and vaporise material.
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Water jet cutting uses a high-pressure stream of water and abrasive to physically erode the material.
2. Material Compatibility
Laser cutting works best on metals like mild steel, aluminium, and stainless steel. It’s ideal for flat sheet materials that don’t require extremely thick cuts.
Water jet cutting can be used on almost anything—stone, glass, plastics, rubber, and even heat-sensitive materials—making it the go-to for more exotic jobs.
3. Cut Thickness (Based on Our Machine)
Our laser can cut mild steel up to 20mm thick, and aluminium or stainless up to around 6mm. These specs reflect our current equipment capabilities—so if your job fits within those ranges, we’ve got you covered.
Water jet cutting, on the other hand, can slice through materials well over 100mm thick, but with longer processing times and a different edge finish.
4. Edge Quality and Finish
Laser cutting delivers clean, precise edges—especially on thin to medium metal. There may be some heat tinting or taper on thicker parts, but the finish is usually smooth and ready to go.
Water jet cutting has the advantage of no heat-affected zones, but the edges can be rougher depending on the material and speed.
5. Speed and Efficiency
Laser cutting is typically much faster, especially for metal parts under 20mm thick. It’s a more efficient option for repeat jobs, signage, brackets, and general metal fabrication.
Water jet cutting is slower overall and tends to be more expensive for smaller or detailed work—but excels when cutting thick, tough, or non-metal materials.
6. Cost Comparison
Laser cutting is more affordable and efficient for most metal-based projects. It’s quick, clean, and precise—especially if you’re supplying ready-to-cut DXF files.
Water jet cutting tends to be more expensive due to longer run times and consumables, but it's a good option if you're cutting very thick or non-metal materials.
Which One Should You Use?
If you’re cutting mild steel, aluminium, or stainless steel, and your parts are under 20mm thick, laser cutting is the clear winner—faster, cleaner, and more cost-effective.
That’s exactly what we specialise in at Flamin Fabrications.
Have a file ready?
Upload your DXF through our online quoting tool and we’ll send you a fast, no-obligation price.
